9. shot (n.) a consecutive series of pictures that constitutes a unit of action in a film
The vacuum level is determined by the pressure differential between the evacuated volume and the surrounding atmosphere. Several units of measure can be used. Most refer to the height of a column of mercury â usually inches of mercury (in.-Hg) or millimeters of mercury (mm-Hg).
In order to be considered a confined space, the area in question must meet the following three criteria: The employeeâs whole body must fit into the space. Assume that some employees may be as small as a child, so even an air receiver tank with a one foot wide oval port counts. The space has limited or restricted means to get into and out.